Sponge



FIG. 1 is a perspective view taken from the top, front, and left side of a sponge in accordance with our new design.

FIG. 2 is a top view of the sponge of FIG. 1.

FIG. 3 is a front view of the sponge of FIG. 1.

FIG. 4 is a rear view of the sponge of FIG. 1.

FIG. 5 is a left side elevational of the sponge of FIG. 1; and,

FIG. 6 is a right side elevational view of the sponge of FIG. 1.

The broken lines shown represent unclaimed subject matter and form no part of the claimed design. 

CLAIM The ornamental design for a sponge, as shown and described. 